It is not unnecessarily aggressive, it is honest and challenging. When did I insult you? Challenging you to be consistent and forthcoming and to question what you have said is not an insult.
What sources would you want? You are perfectly capable of asking for sources if you are curious.
Regarding muslim dancing behavior, you may want to inform itself about the variety of Islamic practices in Central Asia. Afghanistan even internally pretty different practices that include Kazakhs and Turkmens, not just the freshly imported Salafism and the Talaban and so on.
Islam is not monolithic and treatments of the meanings in the Quran and how Hadith are considered vary. Surely you are aware of this, everyone knows the salient distinction made between Sunni and Shia and how they understand these things. I have already explained that Uyghurs have traditional coed dancing traditions as well as segregated. You can easily verify this if you would like. So, given that you were completely wrong about this fact, what do you think about how you described the video? Were you using strong information or guessing to look for a negative interpretation in line with the spirit of the narrator? Are you immune to propaganda? What is the right and honest way to handle this?